139 



subsimplice. in matrice arete repente, pra^lato, tenui tamen, supra 

 piano vel subdepresso, subtus vix convexuloet vel omnino arhizo 

 vel raro e foliorum basi radicellas paucas minutas proferente. 

 Folia plano-disticha, parum imbricata, succuba fere longitudi- 

 naliter inserta, inferiora latiora quam longa, ovato-rotunda, sub- 

 apicalia pauIo longiora et angustiora, oblique oblonga magisque 

 erecta, omnia cellulis bistratis pro majorc parte (medio prajcipue) 

 conflata; cellulae magnse, pellucidae, superiores subsequilatero, 4-7 

 gon?e, mediae inferioresque oblongat^e. Flores ? terminales 

 o^ (valde juveniles solum visi). — Folia 3.1 X3.8, superiora 4.3X2.8, 



cellulse subapicales iV"'^. 



Hab. Sorata alt. 10,000 ped., cum Marchantia mixta, sterilis. 



(No. 3,005 p. p.) — The few species previously known of this 



curious genus are notable for their numerous, long, thick radicles, 



in one species purple, in another white; but in this plant, which 



exactly accords with the other species in the character of its 



foliage, the stems are either entirely rootless or shew rarely one 



or two small fascicles of radicles reduced to mere papillae. 



SYMPHYOGYNA, Mont 



S. Brasiliensis, Mont, van Yungas alt. 6,000 ped. (No. 

 3^059)- — Specimens from South Brazil, and others from the 

 Ouitenian Andes, have the fronds mostly thin and unistratous 

 nearly or quite up to the midrib ; but in these of Dr. Rusby's, and 

 others from the Antilles, the pagina is thickened for about half its 

 breadth, 4 cells thick next the midrib, thence gradually thinning 

 out; yet intermediate states occur. In color, the fronds vary 

 from whitish-green to olive -purple — almost black on the midrib. 



S. LEPTOTIIELIA, Tayl. ? Yungas, alt 6,000 ped. (No. 

 3,007 a). 



S. BrONGNIARTII, Mart. Frondes perpauccne steriles inter 



•s 



Plagiochilas visa;. 



METZGERIA, Raddi. 



IM. HAMATA, Lindberg. Yungas, alt. 6,000 ped., fertilis. (No 



3,007 b). 



ANEURA, Dumort. 



A. (MULTIFlD.f: affinis, sterilis). Sorata, &:c. (No. 3,005 



p.p. &c.) 



